In 2011 an outbreak of a different strain of salmonella linked to ground turkey made 129 people sick and killed one.

“Most people infected with salmonella develop diarrhea, fever, and stomach cramps 12 to 72 hours after being exposed to the bacteria,” the CDC said. “The illness usually lasts four to seven days, and most people recover without treatment.”

Salmonella is a very common cause of food poisoning. Every year, it makes about 1.2 million people sick, puts 23,000 into the hospital and kills 450 people in the U.S.

Maggie Fox

Maggie Fox is senior writer for NBC News and TODAY, writing top news and analysis on health policy, science, medical treatments and disease.